#!/bin/sh


#<title>CSC128: Shell Script Examples - the case statement  </title>
#see page 388
#see page 390 for a nice example on how to use case to make an easy
#little menu program
#forloop demo for class (disregard)

#the -n makes echo not feed in a newline
echo -n "Enter an A, B or C:"

#read is asking for user input
read letter

#this begins the case statement, it is reading in and expanding 
#the variable letter from the user input
#the ;; makes the case statement go to the esac stmt

case "$letter" in
	[D-Z] | [d-z])
	echo "You entered $letter"
	;; 

	B|b)
	echo "You entered a b"
	;;
#note how the program will accept an upper or lower case c
	C|c)
	echo "You entered a C"
	;;
#here is if you entered an a
	A|a)
	echo "You entered a A"
	;;
#the following * matches anything not found in the first 3 cases
	*)
	echo "You did not enter an A, B or C."
	exit 10
	;;

esac